source: https://www.securityfocus.com/bid/13519/info

602 LAN Suite 2004 is reported prone to a directory traversal vulnerability.

It is reported that an attacker can exploit this issue to detect the presence of files on a computer and potentially cause a denial of service condition.

A successful attack may aid in further attacks against the system or lead to a crash due to resource exhaustion. 

http://www.example.com/mail?A=/../../../../../../../[file]